It’s time to play .[ ]A. the football B. games C. a balls D. a f

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It’s time to play        .[     ]
A. the football
B. games
C. a balls
D. a footballs

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举一反三

Found: a set of ______.      [     ]
A. key
B. keys
C. keies

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A set of __________ on the table. [ ]
A. key is
B. keys is
C. keys are
D. key are

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We need one ping-pong ball and two _________.[ ]
A. ping-pong bat
B. ping-pongs bat
C. ping-pong bats
D. ping-pongs bats

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My father has a small _________ collection.[ ]
A. sport
B. sport"s
C. sports"
D. sports

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写出下列名词的复数形式:1. hamburger_____________
2. tomato_______     ______
3. orange___________   ___
4. banana___________ ____
5. strawberry___________ _
6. pear__________          __

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